$\lim_{x\to\pi}\left(x\csc3x\right)$
$\int\sin^n\cdot x\:dx$
$f\left(x\right)=x^2+5x-24$
$tan\left(x\right)sin^2\left(x\right)+tan\left(x\right)cos^2\left(x\right)=\tan\left(x\right)$
$3-5+4-1$
$5x^{2}-8x^{3}+0$
$3zw\left(1+z-w\right)$
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